We first report multi-access time dissemination with bidirectional optical-electrical-optical (BOEO) nodes based on bidirectional time division multiplexing transmission over a single fiber with the same wavelength. Each BOEO node can be simultaneously served as a bidirectional amplifier, an isolator, and a multi-access time dissemination node to boost the faded bidirectional optical signals, to effectively suppress the accumulated noise along the main fiber link, and to extract synchronized time signals, respectively. We experimentally demonstrate multi-access time dissemination with two BOEO nodes in our time dissemination apparatus with the main fiber link up to 350 km. The results illustrate that stabilities in terms of time deviation of 23.2 ps at the integration time of 1 s and 3.8 ps at the integration time of 105 s, 24.3 ps at the integration time of 1 s and 1.3 ps at the integration time of 105 s, and 23.9 ps at the integration time of 1 s and 2.9 ps at the integration time of 105 s are obtained for the main link and access nodes 1 (AN1) and 2 (AN2), respectively. The proposed scheme demonstrated together with preliminary measurement results provides a guidance for future development ultra-long haul fiber-optic time dissemination with the BOEO nodes.

中文翻译：

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具有双向光-电-光节点的多址光纤时间传播

我们首先报告了基于双向时分复用传输的双向光-电-光（BOEO）节点的多址时间传播，该节点基于具有相同波长的单根光纤。每个BOEO节点可同时作为双向放大器、隔离器和多址时间传播节点，对衰减的双向光信号进行升压，有效抑制主光纤链路上的累积噪声，提取同步时间信号，分别。我们通过实验证明了在我们的时间传播设备中使用两个 BOEO 节点的多路访问时间传播，主光纤链路长达 350 公里。结果表明，在 1 s 积分时间和 3.8 ps 积分时间的时间偏差方面的稳定性为 23.2 ps，在 105 s, 24 积分时间。得到主链路和接入节点1 s积分时间3 ps，105 s积分时间1.3 ps，1 s积分时间23.9 ps，105 s积分时间2.9 ps (AN1) 和 2 (AN2)，分别。与初步测量结果一起展示的拟议方案为未来发展与 BOEO 节点的超长距离光纤时间传播提供了指导。